In urban communities and lifestyles, people tend to make things their own by altering the use, spelling or pronounciation of existing words. There is a word ratchet in the english language but it is a mechanical tool. Unlike wretched, it's definition does not relate to the use of this new urban word "ratchet" which describes something or someone that is nasty, mean, trifling and without class especially in a social setting or situation.

Ratchet is a misspelling of the Australian term 'rat shit', meaning terrible, so bad that saying 'shit' isn't enough. What you mean is 'not just shit, but shit from a rat'.

Eg: how are you feeling this morning after those 18 beers? Oh mate, rat shit eh. Or: how's your car running since the prang (collision)? Oh, mate, it's rat shit. Or: I thought I looked hot in that dress but in the photos I look rat shit.

adverb

Its origin is the ratchet sound of handcuffs being zipped on tight and fast. Where I live this word is an adjective or adverb usually to describe a person or a situation almost synonymous with fun (if you just don't care), ugly, ghetto, drama and racket but instead describes all these words depending on the context and people who are -or act ratchet get loud and angry, act juvenile for fun, or do illegal things intentionally without realizing the consequences, for example seek attention of someone calling the cops to resolve the situation. Ratchet however can mean also ugly as in clothes, hairstyle etc... "Wow some drama and ratchet in the subway!" the word ratchet fits many situations and people and applies to all races of people and backgrounds, morals however do not apply and this slang word is used by mostly teenagers on twitter to mean scandalous and foul, no morals, reckless behavior, fun! fugly drama and downright ratchet.